CARDINALUNDERSTAND THE
HARDWARE YOU BUY
Technical explanations and practical buying guides for datacenter accelerators. Follow the sources, compare exact configurations and prepare a clearer request.
17 guides
HOW TO READ A DATACENTER GPU SPECIFICATION
Understand GPU variants, memory capacity, bandwidth and performance footnotes, with worked inference-memory examples and manufacturer sources.
Read the guideHOW TO BUY USED DATACENTER GPUS
A practical guide to exact configurations, seller evidence, compatibility, complete offer costs and acceptance when sourcing used datacenter GPUs.
Read the guideNVIDIA A10 VS A30 VS A40: A BUYER’S COMPARISON
Compare Ampere GPU memory, MIG, graphics, video and server requirements before choosing A10, A30 or A40 hardware.
Read the guideH100 PCIE VS SXM VS NVL: A BUYER'S GUIDE
Compare exact H100 variants, per-card memory, server requirements and used-hardware evidence before requesting an offer.
Read the guideH200 VS H100: WHEN MORE GPU MEMORY MATTERS
Understand H200 and H100 memory differences, test fair workload comparisons and evaluate complete SXM or NVL hardware offers.
Read the guideA100 40GB VS 80GB: CHOOSING THE RIGHT CONFIGURATION
Compare A100 PCIe and SXM4 memory variants, calculate workload needs and assess software, cooling and used-hardware documentation.
Read the guideGPU INTERCONNECTS: A BUYER'S GUIDE TO TOPOLOGY
Understand PCIe, NVLink and server fabrics, compare bandwidth units correctly and request topology evidence for a GPU deployment.
Read the guideHOW TO CHECK GPU SERVER COMPATIBILITY
Build a configuration record covering exact parts, slot layout, power, cooling and software before buying PCIe cards or accelerator modules.
Read the guideHOW MUCH VRAM DOES LLM INFERENCE NEED
Build an inference memory plan from weights, KV cache and runtime assumptions, then check device distribution and measured service performance
Read the guideHOW TO CALCULATE KV CACHE MEMORY
Calculate logical KV cache storage using the correct head count, then account for windowed layers, paging, precision and actual allocation policies
Read the guideGPU SERVER POWER AND COOLING BEFORE YOU BUY
Plan complete-server power, passive GPU cooling and facility compatibility with a worked budget and a practical quote template
Read the guideHOW TO REVIEW USED GPU TESTING AND ACCEPTANCE
Interpret seller diagnostic records, connect evidence to each GPU and prepare an acceptance checklist without assuming a reliability guarantee
Read the guideMI300X VS MI325X: CHOOSING AN AMD PLATFORM
Compare AMD MI300X and MI325X capacity, OAM server requirements and ROCm validation before choosing a sourcing configuration.
Read the guideL40S VS H100: CHOOSE AROUND THE WORKLOAD
Compare L40S graphics and video features with exact H100 variants, including memory, interconnect and server integration requirements.
Read the guideINTEL GAUDI 3: A HARDWARE BUYER'S GUIDE
Understand Gaudi 3 HL-325L and HL-338 variants, Ethernet topology, software migration and evidence to request from a hardware seller.
Read the guideGPU INFERENCE PRECISION: A BUYER'S GUIDE TO QUANTIZATION
Understand weight formats, compute precision, KV-cache quantization and GPU kernel support before choosing hardware for LLM inference.
Read the guideHOW TO READ USED GPU PRICE REFERENCES
Understand exact-variant asking prices, condition cohorts, observation dates and seller-weighted ranges before comparing a sourcing offer
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